org/codehaus/griffon/runtime/core/AbstractMVCGroup.java

`AbstractMVCGroup.java`
`001 /* 002 * Copyright 2009-2012 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 package org.codehaus.griffon.runtime.core; 018 019 020 import griffon.core.*; 021 import groovy.lang.Script; 022 import groovy.util.FactoryBuilderSupport; 023 024 import java.util.LinkedHashMap; 025 import java.util.Map; 026 import java.util.UUID; 027 028 import static java.util.Collections.unmodifiableMap; 029 030 /** 031 * Base implementation of the {@code MVCGroup} interface 032 * 033 * @author Andres Almiray 034 * @since 0.9.4 035 */ 036 public abstract class AbstractMVCGroup implements MVCGroup { 037 protected final GriffonApplication app; 038 protected final MVCGroupConfiguration configuration; 039 protected final String mvcId; 040 protected final Map<String, Object> members = new LinkedHashMap<String, Object>(); 041 private boolean alive; 042 private final Object[] lock = new Object[0]; 043 protected final Map<String, Object> scriptResults = new LinkedHashMap<String, Object>(); 044 045 public AbstractMVCGroup(GriffonApplication app, MVCGroupConfiguration configuration, String mvcId, Map<String, Object> members) { 046 this.app = app; 047 this.configuration = configuration; 048 this.mvcId = mvcId == null ? configuration.getMvcType() + "-" + UUID.randomUUID().toString() : mvcId; 049 this.members.putAll(members); 050 this.alive = true; 051 } 052 053 public GriffonApplication getApp() { 054 return app; 055 } 056 057 public MVCGroupConfiguration getConfiguration() { 058 return configuration; 059 } 060 061 public String getMvcType() { 062 return configuration.getMvcType(); 063 } 064 065 public String getMvcId() { 066 return mvcId; 067 } 068 069 public GriffonModel getModel() { 070 return (GriffonModel) getMember(GriffonModelClass.TYPE); 071 } 072 073 public GriffonView getView() { 074 return (GriffonView) getMember(GriffonViewClass.TYPE); 075 } 076 077 public GriffonController getController() { 078 return (GriffonController) getMember(GriffonControllerClass.TYPE); 079 } 080 081 public FactoryBuilderSupport getBuilder() { 082 return (FactoryBuilderSupport) getMember("builder"); 083 } 084 085 public Object getMember(String name) { 086 checkIfAlive(); 087 return members.get(name); 088 } 089 090 public Map<String, Object> getMembers() { 091 checkIfAlive(); 092 return unmodifiableMap(members); 093 } 094 095 public void destroy() { 096 checkIfAlive(); 097 app.getMvcGroupManager().destroyMVCGroup(mvcId); 098 members.clear(); 099 synchronized (lock) { 100 alive = false; 101 } 102 } 103 104 public boolean isAlive() { 105 synchronized (lock) { 106 return alive; 107 } 108 } 109 110 protected void checkIfAlive() { 111 if (!isAlive()) { 112 throw new IllegalStateException("Group " + getMvcType() + ":" + mvcId + " has been destroyed already."); 113 } 114 } 115 116 public Object getScriptResult(String name) { 117 return scriptResults.get(name); 118 } 119 120 public void buildScriptMember(final String name) { 121 Object member = members.get(name); 122 if (!(member instanceof Script)) return; 123 final Script script = (Script) member; 124 125 // special case: view gets executed in the UI thread always 126 if ("view".equals(name)) { 127 UIThreadManager.getInstance().executeSync(new Runnable() { 128 public void run() { 129 scriptResults.put(name, getBuilder().build(script)); 130 } 131 }); 132 } else { 133 scriptResults.put(name, getBuilder().build(script)); 134 } 135 } 136 }`